Publish/subscribe to topics on remote ROS instances
topic_bridge enables robots on separate machines to communicate when they do not use the same ROS master.
Each ROS master should have a single topic_bridge node. The node listens to bspecified topics via ROS's communication infrastructure, and sends messages it receives to other topic_bridge nodes on other ROS masters via 0MQs publish / subscribe sockets. Upon receiving a message from a foreign topic_bridge, the local topic_bridge will broadcast the message locally via ROS' communication infrastructure.
I've measured the following on a basic mesh 802.11S network.
Commands to send, receive, and check dropped packets:
cat /dev/zero | netcat -u 192.168.130.28 8080 netcat -l -u -p 8080 | pv > /dev/null netstat -su
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